CCTV images of two men have been released as police make enquiries about two incidents which occurred after they boarded a train travelling through Renfrewshire.
Officers from British Transport Police (BTP) believe the men may be able to assist them after a man was injured and required hospital treatment following the incidents between Paisley Gilmour Street and Gourock.
The incidents happened shortly after 11.30pm between the two stations on Saturday, December 22, 2018.
The man in image one is believed to have boarded the train at Glasgow Central and to have left at Langbank.
Anyone who recognises the men, or who has more information about the incident, is asked to contact BTP by texting 61016 or calling 0800 40 50 40, quoting reference number PBT0782690017.
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